Optical photographing assembly, image capturing apparatus and electronic device

ABSTRACT

An optical photographing assembly includes, in order from an object side to an image side along an optical axis, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The third lens element has at least one of an object-side surface and an image-side surface being aspheric. The fourth lens element has at least one of an object-side surface and an image-side surface being aspheric. The fifth lens element has at least one of an object-side surface and an image-side surface being aspheric, wherein at least one of the object-side surface and the image-side surface of the fifth lens element includes at least one inflection point.

RELATED APPLICATIONS

The present application is a Divisional Application of the U.S.application Ser. No. 15/296,149, filed Oct. 18, 2016, which claimspriority to Taiwan Application Serial Number 105122251, filed Jul. 14,2016, which is herein incorporated by reference.

BACKGROUND Technical Field

The present disclosure relates to an optical photographing assembly andan image capturing apparatus. More particularly, the present disclosurerelates to a miniaturized optical photographing assembly and aminiaturized image capturing apparatus with a telephoto characteristicapplicable to electronic devices.

Description of Related Art

With the variety of the application of photographing modules, marketrequirement of miniaturization and image quality is further demanded,especially portable device products which is closer to the publicdemand. For obtaining extensive experiences in utilizations of thephotographing modules, intelligent devices with one, two or more thanthree lens assemblies are the market mainstream, and angle of field ofview of photographing modules should also be varied.

Conventional telephoto lens assembly is limited by surface shapes ormaterials of lens elements, so that the volume cannot be reduced easilyand price is too high, and further the application range is limited.Hence, one of the goals in the optical lens industry is to find out howto satisfy market specification and demand under the arrangement oftelephoto characteristic, miniaturization and high image quality at thesame time, and applicable to portable device, compact electronic device,zoom device, multiple lens assemblies device, etc.

SUMMARY

According to one aspect of the present disclosure, an opticalphotographing assembly includes, in order from an object side to animage side along an optical axis, a first lens element, a second lenselement, a third lens element, a fourth lens element and a fifth lenselement. The first lens element has positive refractive power. The thirdlens element has at least one of an object-side surface and animage-side surface being aspheric. The fourth lens element has at leastone of an object-side surface and an image-side surface being aspheric.The fifth lens element has at least one of an object-side surface and animage-side surface being aspheric, wherein at least one of theobject-side surface and the image-side surface of the fifth lens elementincludes at least one inflection point. The optical photographingassembly has a total of five lens elements, there is an air spacebetween every two lens elements of the first lens element, the secondlens element, the third lens element, the fourth lens element and thefifth lens element that are adjacent to each other. When a maximum fieldof view of the optical photographing assembly is FOV, an axial distancebetween an image-side surface of one lens element closest to an imagesurface and the image surface is BL, an axial distance between anobject-side surface of one lens element closest to an imaged object andthe image-side surface of the lens element closest to the image surfaceis TD, an axial distance between the second lens element and the thirdlens element is T23, a central thickness of the first lens element isCT1, a focal length of the optical photographing assembly is f, and acurvature radius of the object-side surface of the fourth lens elementis R7, the following conditions are satisfied:

0.10<tan(FOV)<0.85;

0.75<BL/TD<1.50;

0<T23/CT1<0.60; and

−9.50<f/R7<1.50.

According to another aspect of the present disclosure, an imagecapturing apparatus includes the optical photographing assembly of theaforementioned aspect and an image sensor, wherein the image sensor isdisposed on the image surface of the optical photographing assembly.

According to yet another aspect of the present disclosure, an electronicdevice includes the image capturing apparatus of the aforementionedaspect.

According to further another aspect of the present disclosure, anoptical photographing assembly includes, in order from an object side toan image side along an optical axis, an object-side reflective element,a plurality of lens elements and an image-side reflective element. Theobject-side reflective element has no refractive power. At least onesurface of at least one of the lens elements is aspheric and includes atleast one inflection point. The image-side reflective element has norefractive power. There is no lens element along the optical axisbetween the object-side reflective element and an imaged object, andthere is no lens element along the optical axis between the image-sidereflective element and an image surface. When a maximum field of view ofthe optical photographing assembly is FOV, an axial distance between animage-side surface of one lens element closest to an image surface andthe image surface is BL, an axial distance between an object-sidesurface of one lens element closest to an imaged object and theimage-side surface of the lens element closest to the image surface isTD, a width parallel to the optical axis of the object-side reflectiveelement is WPO, a width parallel to the optical axis of the image-sidereflective element is WPI, and a focal length of the opticalphotographing assembly is f, the following conditions are satisfied:

0.10<tan(FOV)<1.0;

0.55<BL/TD<1.80; and

0.70<(WPO+WPI)/f<1.50.

According to still another aspect of the present disclosure, an imagecapturing apparatus includes the optical photographing assembly of theaforementioned aspect and an image sensor, wherein the image sensor isdisposed on the image surface of the optical photographing assembly. Theoptical photographing assembly is movable in the image capturingapparatus for stabilizing an image.

According to yet another aspect of the present disclosure, an electronicdevice includes the image capturing apparatus of the aforementionedaspect, wherein a thickness of the electronic device is smaller than thefocal length of the optical photographing assembly of the imagecapturing apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a schematic view of an optical photographing assemblyaccording to the 1st embodiment of the present disclosure;

FIG. 1B is a schematic view of the optical photographing assemblyaccording to the 1st embodiment of FIG. 1A which include differentshapes and arrangements of the prisms;

FIG. 1C is a schematic view of the optical photographing assemblyaccording to the 1st embodiment of FIG. 1A which include differentshapes and arrangements of the prisms;

FIG. 2 shows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly according to the1st embodiment;

FIG. 3A is a schematic view of an optical photographing assemblyaccording to the 2nd embodiment of the present disclosure;

FIG. 3B is a schematic view of the optical photographing assemblyaccording to the 2nd embodiment of FIG. 3A which include differentshapes and arrangements of the prisms;

FIG. 3C is a schematic view of the optical photographing assemblyaccording to the 2nd embodiment of FIG. 3A which include differentshapes and arrangements of the prisms;

FIG. 4A shows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly when an objectdistance thereof is infinite according to the 2nd embodiment;

FIG. 4B shows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly when the objectdistance thereof is 400 mm according to the 2nd embodiment;

FIG. 5A is a schematic view of an optical photographing assemblyaccording to the 3rd embodiment of the present disclosure.

FIG. 5B is a schematic view of the optical photographing assemblyaccording to the 3rd embodiment of FIG. 5A which includes differentshapes and arrangements of the prism.

FIG. 6 shows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly according to the3rd embodiment.

FIG. 7 is a schematic view of an optical photographing assemblyaccording to the 4th embodiment of the present disclosure.

FIG. 8 shows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly according to the4th embodiment.

FIG. 9 is a schematic view of an optical photographing assemblyaccording to the 5th embodiment of the present disclosure.

FIG. 10 shows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly according to the5th embodiment.

FIG. 11A is a schematic view of an optical photographing assemblyaccording to the 6th embodiment of the present disclosure.

FIG. 11B is a schematic view of the optical photographing assemblyaccording to the 6th embodiment of FIG. 11A which includes differentshapes and arrangements of the prisms.

FIG. 11C is a schematic view of the optical photographing assemblyaccording to the 6th embodiment of FIG. 11A which includes differentshapes and arrangements of the prisms.

FIG. 12 shows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly according to the6th embodiment.

FIG. 13A is a schematic view of an optical photographing assemblyaccording to the 7th embodiment of the present disclosure.

FIG. 13B is a schematic view of the optical photographing assemblyaccording to the 7th embodiment of FIG. 13A which include differentshapes and arrangements of the prisms;

FIG. 13C is a schematic view of the optical photographing assemblyaccording to the 7th embodiment of FIG. 13A which include differentshapes and arrangements of the prisms;

FIG. 14A shows spherical aberration curves, astigmatic field curves anda distortion curve of the optical photographing assembly when an objectdistance thereof is infinite according to the 7th embodiment.

FIG. 14B shows spherical aberration curves, astigmatic field curves anda distortion curve of the optical photographing assembly when the objectdistance thereof is 400 mm according to the 7th embodiment.

FIG. 15 is a schematic view of an electronic device according to the 8thembodiment of the present disclosure.

FIG. 16 is a schematic view of an electronic device according to the 9thembodiment of the present disclosure.

FIG. 17 is a schematic view of an electronic device according to the10th embodiment of the present disclosure.

FIG. 18 is a schematic view of an electronic device according to the11th embodiment of the present disclosure.

FIG. 19 is a schematic view of parameters of the optical photographingassembly according to the 1st embodiment of the present disclosure.

FIG. 20 is a schematic view of the parameter TP of the opticalphotographing assembly according to the 1st embodiment of the presentdisclosure.

DETAILED DESCRIPTION

An optical photographing assembly includes, in order from an object sideto an image side along an optical axis, a first lens element, a secondlens element, a third lens element, a fourth lens element and a fifthlens element, wherein the optical photographing assembly has a total offive lens elements.

According to the optical photographing assembly of the presentdisclosure, there is an air space between every two lens elements of thefirst lens element, the second lens element, the third lens element, thefourth lens element and the fifth lens element that are adjacent to eachother. That is, each of the first through fifth lens elements is asingle and non-cemented lens element, and there is a space between everytwo adjacent lens elements. Moreover, the manufacturing process of thecemented lenses is more complex than the non-cemented lenses. Inparticular, a cementing surface of one lens element and a cementingsurface of the following lens element need to have accurate curvature toensure these two lens elements will be highly cemented. However, duringthe cementing process, those two lens elements might not be highlycemented due to displacements and it is thereby not favorable for imagequality of the optical photographing assembly. Therefore, according tothe optical photographing assembly of the present disclosure, having anair space in a paraxial region between every two adjacent lens elementsavoids the problem generated by the cemented lens elements.

The first lens element can have positive refractive power, so that themain light converging ability can be provided so as to reduce the totaltrack length of the optical photographing assembly. Further, the firstlens element can have an object-side surface being convex. Therefore, itis favorable for obtaining the stronger refractive power of the firstlens element so as to form the telephoto structure thereof.

The second lens element can have negative refractive power for balancingspherical aberration and chromatic aberration generated from the firstlens element so as to moderate the incident light.

The third lens element can have positive refractive power. Therefore, itis favorable for guiding the incident light into the opticalphotographing assembly by balancing the positive refractive power of thefirst lens element.

The fourth lens element can have negative refractive power. Therefore,it is favorable for balancing arrangements of the telephoto structureand the back focal length so as to achieve compact and telephotoeffects.

The fifth lens element can have an image-side surface being concave, sothat aberrations of the optical photographing assembly can be corrected,and size of the lens barrel can be also reduced. Furthermore, at leastone of an object-side surface and the image-side surface of the fifthlens element includes at least one inflection point. Therefore, it isalso favorable for controlling the incident angle onto the image surfaceeffectively so as to reduce the effective diameter of the back focusingrange and will not affect the application of the optical photographingassembly.

When a maximum field of view of the optical photographing assembly isFOV, the following condition is satisfied: 0.10<tan(FOV)<1.0. Therefore,it is favorable for capturing the image far from the opticalphotographing assembly, and increasing the resolution of partial imageso as to obtain the telephoto effect. More preferably, the followingcondition can be satisfied: 0.10<tan(FOV)<0.85. More preferably, thefollowing condition can be satisfied: 0.45<tan(FOV)<0.70.

When an axial distance between an image-side surface of one lens elementclosest to an image surface and the image surface is BL, and an axialdistance between an object-side surface of one lens element closest toan imaged object and the image-side surface of the lens element closestto the image surface is TD, the following condition is satisfied:0.55<BL/TD<1.80. Therefore, it is favorable for controlling the backfocal length of the optical photographing assembly, so that thesufficient focal length can be obtained with miniature space, and thetelephoto effect and reduced thickness of the optical photographingassembly can be both satisfied. More preferably, the following conditioncan be satisfied: 0.75<BL/TD<1.50.

When an axial distance between the second lens element and the thirdlens element is T23, and a central thickness of the first lens elementis CT1, the following condition is satisfied: 0<T23/CT1<0.60. Therefore,it is favorable for adapting variation of environment and strengtheningthe utility of the mechanism of the optical photographing assembly byproviding the first lens element with sufficient thickness, and waste ofspace can also be avoided by reducing the distance between the secondlens element and the third lens element. More preferably, the followingcondition can be satisfied: 0<T23/CT1<0.25.

When a focal length of the optical photographing assembly is f, and acurvature radius of the object-side surface of the fourth lens elementis R7, the following condition is satisfied: −9.50<f/R7<1.50. Therefore,it is favorable for avoiding serious aberrations generated fromexcessive curvature by controlling the curvature of the object-sidesurface of the fourth lens element effectively. More preferably, thefollowing condition can be satisfied: −6.50<f/R7<0.50.

When the focal length of the optical photographing assembly is f, andthe axial distance between the object-side surface of the lens elementclosest to the imaged object and the image-side surface of the lenselement closest to the image surface is TD, the following condition issatisfied: 1.50<f/TD<2.50. Therefore, the contribution of the focallength and the arrangement of the lens elements of optical photographingassembly can be balanced so as to reduce the length of the arrangementof the lens elements and the effective radius thereof. More preferably,the following condition can be satisfied: 1.72<f/TD<2.20.

The optical photographing assembly can further includes an aperturestop, wherein when an axial distance between the aperture stop and theimage-side surface of the lens element closest to the image surface isSD, and the axial distance between the object-side surface of the lenselement closest to the imaged object and the image-side surface of thelens element closest to the image surface is TD, the following conditionis satisfied: 0.80<SD/TD<1.10. Therefore, it is favorable for formingthe telephoto structure and controlling the total track length of theoptical photographing assembly by adjusting the location of the aperturestop effectively.

When the focal length of the optical photographing assembly is f, and afocal length of the fourth lens element is f4, the following conditionis satisfied: −1.0<f/f4<1.0. Therefore, it is favorable for balancingthe telephoto structure and the proper back focal length by controllingthe refractive power of the fourth lens element effectively.

When the focal length of the optical photographing assembly is f, and afocal length of the fifth lens element is f5, and the followingcondition is satisfied: −1.0<f/f5<1.0. Therefore, it is favorable forcorrecting off-axial aberration by controlling the refractive power ofthe fifth lens element effectively.

When a focal length of the first lens element is f1, a focal length ofthe second lens element is f2, and the following condition is satisfied:|f1/f2|<1.0. Therefore, it is favorable for reducing the total tracklength and obtaining the telephoto structure at the same time bybalancing the refractive power of the first lens element and the secondlens element.

When a sum of thicknesses of the lens elements of the opticalphotographing assembly is ΣCT, and a sum of axial distances betweenevery two of the lens elements of the optical photographing assemblythat are adjacent to each other is ΣAT, the following condition issatisfied: 3.0<ΣCT/ΣAT<5.0. Therefore, it is favorable for reducing thesensitivity, assembling the optical photographing assembly andeffectively utilizing the space by properly distributing the proportionof the lens elements arranged in the optical photographing assembly.

When the central thickness of the first lens element is CT1, and a sumof thicknesses of the lens elements of the optical photographingassembly is ΣCT, the following condition is satisfied:0.50<CT1/(ΣCT−CT1)<1.80. Therefore, the structure of the first lenselement is stable so as to maintain the image quality far from theenvironment factor.

When an Abbe number of the second lens element is V2, the followingcondition is satisfied: V2<27.0. Therefore, it is favorable forcorrecting chromatic aberration of the optical photographing assembly.

When an Abbe number of the third lens element is V3, the followingcondition is satisfied: V3<27.0. Therefore, it is favorable forminiaturizing the optical photographing assembly with a telephotocharacteristic by reducing the volume thereof.

When an Abbe number of the fourth lens element is V4, the followingcondition is satisfied: V4<27.0. Therefore, it is favorable foradjusting lights with different wavelength to image on the same imagesurface so as to avoid the overlap of the image.

When an effective radius of a lens surface closest to the imaged objectis Yo, and an effective radius of a lens surface closest to the imagesurface is Yi, the following condition is satisfied: 0.95<Yo/Yi<1.15.Therefore, the brightness of the image is even due to control ranges ofincident light and the outgoing light effectively.

When a maximum among effective radii of object-side and image-sidesurfaces of the lens elements of the optical photographing assembly isYmax, and a minimum among effective radii of the object-side and theimage-side surfaces of the lens elements of the optical photographingassembly is Ymin, the following condition is satisfied:1.0<Ymax/Ymin<1.50. Therefore, the effective radius of each lens elementof the optical photographing assembly can be balanced, so that theefficiency of molding of the lens elements would not be affected byavoiding the excessive difference among the lens elements.

When an axial distance between an object-side surface of the first lenselement and the aperture stop is Dr1s, and an axial distance between animage-side surface of the first lens element and the aperture stop isDr2s, the following condition is satisfied: 0<|Dr1s/Dr2s|<1.0.Therefore, the relative location of the aperture stop and the first lenselement can be balanced so as to control the total track length of theoptical photographing assembly.

When a curvature radius of an object-side surface of the second lenselement is R3, and a curvature radius of an image-side surface of thesecond lens element is R4, the following condition is satisfied:−1.5<(R3−R4)/(R3+R4)<0. Therefore, it is favorable for correctingastigmatism by concentrating the refractive power of the second lenselement on the object side.

When a curvature radius of the object-side surface of the third lenselement is R5, and a curvature radius of the image-side surface of thethird lens element is R6, the following condition is satisfied:−2.0<(R5+R6)/(R5−R6)<1.0. Therefore, the third lens element can be moresymmetrical so as to increase the symmetry of the optical photographingassembly and reduce aberrations.

When the focal length of the optical photographing assembly is f, and amaximum image height of the optical photographing assembly is ImgH, thefollowing condition is satisfied: 3.0<f/ImgH<6.0. Therefore, the ratioof the focal length of the optical photographing assembly and the lightreceiving range of the image surface can be balanced, so that theinsufficient brightness of the image from too small light receivingrange can be avoided. More preferably, the following condition can besatisfied: 3.5<f/ImgH<4.5.

The first lens element can be a movable focusing lens element, there isa relative displacement between the first lens element and the secondlens element during focusing, and it is relatively stationary betweenevery two of the second lens element, the third lens element, the fourthlens element and the fifth lens element, that is, there is no relativedisplacement between every two of the second lens element, the thirdlens element, the fourth lens element and the fifth lens element.Therefore, error from movement can be avoided by fixing the lenselements mostly, and the sensitivity of the optical photographingassembly can also be reduced. In an optical system, an object distanceis an axial distance between the imaged object and an object end of theoptical photographing assembly. The optical photographing assembly ofthe present disclosure, when an axial distance between the first lenselement and the second lens element with an object distance at infinityis T12i, and an axial distance between the first lens element and thesecond lens element with the object distance at 400 mm is T12m, thefollowing condition is satisfied: 0.50<T12i/T12m<0.95. Therefore, it isfavorable for compensating vague image from different object distancesby controlling the movement ratio of the first lens element, and themoving range of the optical photographing assembly can be lessened so asto reduce dissipative energy and further avoid the noise from theexcessive vibration.

The optical photographing assembly can further include at least oneprism on the optical axis. Therefore, it is favorable for diverting theoptical path, and the demand of the diversion space on the back focusingrange can be reduced. In detail, the prism can be disposed at the objectside of the first lens element or disposed at the image side of thefifth lens element. When the axial distance between the object-sidesurface of the lens element closest to the imaged object and theimage-side surface of the lens element closest to the image surface isTD, and a sum of light path lengths on the optical axis in the at leastone prism is TP, the following condition is satisfied: 0.80<TD/TP<1.25.Therefore, it is favorable for controlling the arrangement of the lenselements effectively, and the volume of the optical photographingassembly with the prism can be miniaturized.

Another one optical photographing assembly of the present disclosureincludes, in order from an object side to an image side along an opticalaxis, an object-side reflective element, a plurality of lens elementsand an image-side reflective element. Both of the object-side reflectiveelement and the image-side reflective element have no refractive power.At least one surface of at least one of the lens elements is asphericand includes at least one inflection point. There is no lens elementalong the optical axis between the object-side reflective element and animaged object, and there is no lens element along the optical axisbetween the image-side reflective element and an image surface.

The optical photographing assembly has a total of five lens elements,which are, in order from an object side to an image side along anoptical axis, a first lens element, a second lens element, a third lenselement, a fourth lens element and a fifth lens element. Thecorresponding conditions are the same as the aforementioneddescriptions, and will not state again herein.

At least one surface of each of the fourth lens element and the fifthlens element is aspheric. Therefore, off-axial aberration of the opticalphotographing assembly can be corrected.

When a width parallel to the optical axis of the object-side reflectiveelement is WPO, a width parallel to the optical axis of the image-sidereflective element is WPI, and the focal length of the opticalphotographing assembly is f, the following condition is satisfied:0.70<(WPO+WPI)/f<1.50. Therefore, it is favorable for increasing theutilizing efficiency of the electronic device by adjusting the size ofthe reflective elements and balancing the size of the reflectiveelements and the focal length of the optical photographing assembly.

Each of the object-side reflective element and the image-side reflectiveelement can be made of a plastic material or a glass material, and canbe a prism or a mirror. When the object-side reflective element or theimage-side reflective element is made of a plastic material,manufacturing costs and weight of the optical photographing assembly canbe reduced, and variability thereof can also be increased. When theobject-side reflective element or the image-side reflective element is aprism, which is favorable for distributing space so as to obtain thesufficient diversion space of the optical path. When an Abbe number ofthe object-side reflective element is VRO, and an Abbe number of theimage-side reflective element is VRI, the following condition issatisfied: VRO<60.0; and VRI<60.0. Therefore, the electronic device canobtain the diversion effect of the optical path utilizing the smallerspace, so that it is favorable for reducing the volume of the prism andthen reducing the volume of the electronic device.

When an axial distance between the object-side reflective element andthe image-side reflective element is DP, the width parallel to theoptical axis of the object-side reflective element is WPO, and the widthparallel to the optical axis of the image-side reflective element isWPI, the following condition is satisfied: 0.50<DP/(WPO+WPI)<0.80.Therefore, it is favorable for forming the telephoto structure andreducing the volume of the optical photographing assembly so as to reachthe most efficient application thereof.

An incident light through the object-side reflective element into theoptical photographing assembly and an outgoing light through theimage-side reflective element are on the same side of the optical axisof the lens elements. Therefore, the space can be fully utilized, andthe space arrangement of the entire electronic device can have unity.

The plurality of lens elements of the optical photographing assembly caninclude three lens elements, and an Abbe number of each of the threelens elements is smaller than 27.0. Therefore, it is favorable forminiaturizing the optical photographing assembly with the telephotocharacteristic so as to reduce the volume and correct chromaticaberration.

When a focal length of the first lens element is f1, a focal length ofthe second lens element is f2, and the focal length of the opticalphotographing assembly is f, the following condition is satisfied:3.30<|f/f1|+|f/f2|<5.80. Therefore, it is favorable for obtaining thetelephoto effect by arranging the stronger refractive power on theobject side.

According to the optical photographing assembly of the presentdisclosure, the lens elements thereof can be made of glass or plasticmaterials. When the lens elements are made of glass materials, thedistribution of the refractive power of the optical photographingassembly may be more flexible to design. When the lens elements are madeof plastic materials, manufacturing costs can be effectively reduced.Furthermore, surfaces of each lens element can be arranged to beaspheric, since the aspheric surface of the lens element is easy to forma shape other than a spherical surface so as to have more controllablevariables for eliminating aberrations thereof, and to further decreasethe required amount of lens elements in the optical photographingassembly. Therefore, the total track length of the optical photographingassembly can also be reduced.

According to the optical photographing assembly of the presentdisclosure, each of an object-side surface and an image-side surface hasa paraxial region and an off-axial region. The paraxial region refers tothe region of the surface where light rays travel close to an opticalaxis, and the off-axial region refers to the region of the surface awayfrom the paraxial region. Particularly, when the lens element has aconvex surface, it indicates that the surface can be convex in theparaxial region thereof; when the lens element has a concave surface, itindicates that the surface can be concave in the paraxial regionthereof. According to the optical photographing assembly of the presentdisclosure, the refractive power or the focal length of a lens elementbeing positive or negative may refer to the refractive power or thefocal length in a paraxial region of the lens element.

According to the optical photographing assembly of the presentdisclosure, the optical photographing assembly can include at least onestop, such as an aperture stop, a glare stop or a field stop. Said glarestop or said field stop is for eliminating the stray light and therebyimproving the image resolution thereof.

According to the optical photographing assembly of the presentdisclosure, the image surface of the optical image lens assembly, basedon the corresponding image sensor, can be flat or curved. In particular,the image surface can be a curved surface being concave facing towardsthe object side.

According to the optical photographing assembly of the presentdisclosure, an aperture stop can be configured as a front stop a middlestop. A front stop disposed between an object and the first lens elementcan provide a longer distance between an exit pupil of the opticalphotographing assembly and the image surface, and thereby obtains atelecentric effect and improves the image-sensing efficiency of theimage sensor, such as CCD or CMOS. A middle stop disposed between thefirst lens element and the image surface is favorable for enlarging thefield of view of the optical photographing assembly and thereby providesa wider field of view for the same.

According to the optical photographing assembly of the presentdisclosure, the optical photographing assembly can be applied to 3D(three-dimensional) image capturing applications, in products such asdigital cameras, mobile devices, digital tablets, smart TVs,surveillance systems, motion sensing input devices, driving recordingsystems, rearview camera systems, and wearable devices.

According to the present disclosure, an image capturing apparatus isprovided. The image capturing apparatus includes the aforementionedoptical photographing assembly and an image sensor, wherein the imagesensor is disposed on the image side of the aforementioned opticalphotographing assembly, that is, the image sensor can be disposed on ornear the image surface of the aforementioned optical photographingassembly. In the image capturing apparatus, the optical photographingassembly is movable for stabilizing an image, for example, the imagecapturing apparatus 1100 can further include optical image stabilization(OIS) functionality. Therefore, vague image caused from insufficientlight or vibration can be corrected and compensated. Preferably, theimage capturing apparatus can further include a barrel member, a holdermember or a combination thereof.

According to the present disclosure, an electronic device is provided,which includes the aforementioned image capturing apparatus. A thicknessof the electronic device is smaller than the focal length of the opticalphotographing assembly of the image capturing apparatus. Therefore, itis favorable for miniaturizing the electronic device and applying towider utilization. Preferably, the electronic device can further includebut not limited to a control unit, a display, a storage unit, a randomaccess memory unit (RAM) or a combination thereof.

According to the above description of the present disclosure, thefollowing 1st-11th specific embodiments are provided for furtherexplanation.

1st Embodiment

FIG. 1A is a schematic view of an optical photographing assemblyaccording to the 1st embodiment of the present disclosure. FIG. 2 showsspherical aberration curves, astigmatic field curves and a distortioncurve of the optical photographing assembly according to the 1stembodiment. In FIG. 1A, the optical photographing assembly includes, inorder from an object side to an image side, a prism 180, an aperturestop 100, a first lens element 110, a second lens element 120, a thirdlens element 130, a fourth lens element 140, a fifth lens element 150, afilter 160, a prism 190 and an image surface 170. The opticalphotographing assembly has a total of five lens elements (110-150), andthere is an air space between every two lens elements of the first lenselement 110, the second lens element 120, the third lens element 130,the fourth lens element 140 and the fifth lens element 150 that areadjacent to each other.

The first lens element 110 with positive refractive power has anobject-side surface 111 being convex and an image-side surface 112 beingconvex. The first lens element 110 is made of a plastic material, andhas the object-side surface 111 and the image-side surface 112 beingboth aspheric.

The second lens element 120 with negative refractive power has anobject-side surface 121 being concave and an image-side surface 122being convex. The second lens element 120 is made of a plastic material,and has the object-side surface 121 and the image-side surface 122 beingboth aspheric.

The third lens element 130 with positive refractive power has anobject-side surface 131 being convex and an image-side surface 132 beingconvex. The third lens element 130 is made of a plastic material, andhas the object-side surface 131 and the image-side surface 132 beingboth aspheric.

The fourth lens element 140 with negative refractive power has anobject-side surface 141 being concave and an image-side surface 142being convex in a paraxial region thereof. The fourth lens element 140is made of a plastic material, and has the object-side surface 141 andthe image-side surface 142 being both aspheric.

The fifth lens element 150 with negative refractive power has anobject-side surface 151 being convex and an image-side surface 152 beingconcave. The fifth lens element 150 is made of a plastic material, andhas the object-side surface 151 and the image-side surface 152 beingboth aspheric. Furthermore, both of the object-side surface 151 and theimage-side surface 152 of the fifth lens element 150 include at leastone inflection point.

The filter 160 is made of a glass material and located between the fifthlens element 150 and the image surface 170, and will not affect thefocal length of the optical photographing assembly.

In the optical photographing assembly according to the 1st embodiment,the optical photographing assembly includes two prisms 180, 190 whichare made of glass materials. The prism 180 can be an object-sidereflective element located between an imaged object (its referencenumeral is omitted) and the aperture stop 100 on an optical path (whichis located on an optical axis of the optical photographing assemblyaccording to the 1st embodiment). The prism 190 can be an image-sidereflective element located between the filter 160 and the image surface170 on the optical path (which is located on the optical axis of theoptical photographing assembly according to the 1st embodiment).

The equation of the aspheric surface profiles of the aforementioned lenselements of the 1st embodiment is expressed as follows:

${{X(Y)} = {{\left( {Y^{2}\text{/}R} \right)\text{/}\left( {1 + {{sqrt}\left( {1 - {\left( {1 + k} \right) \times \left( {\text{Y}\text{/}\text{R}} \right)^{2}}} \right)}} \right)} + {\sum\limits_{l}\; {({Ai}) \times \left( Y^{\prime} \right)}}}},$

where,

X is the relative distance between a point on the aspheric surfacespaced at a distance Y from the optical axis and the tangential plane atthe aspheric surface vertex on the optical axis;

Y is the vertical distance from the point on the aspheric surface to theoptical axis;

R is the curvature radius;

k is the conic coefficient; and

Ai is the i-th aspheric coefficient.

In the optical photographing assembly according to the 1st embodiment,when a focal length of the optical photographing assembly is f, anf-number of the optical photographing assembly is Fno, and half of amaximum field of view of the optical photographing assembly is HFOV,these parameters have the following values: f=10.00 mm; Fno=2.80; andHFOV=14.0 degrees.

In the optical photographing assembly according to the 1st embodiment,when an Abbe number of the second lens element 120 is V2, an Abbe numberof the third lens element 130 is V3, and an Abbe number of the fourthlens element 140 is V4, the following conditions are satisfied: V2=20.4;V3=20.4; and V4=20.4.

In the optical photographing assembly according to the 1st embodiment,when a maximum field of view of the optical photographing assembly isFOV, the following condition is satisfied: tan(FOV)=0.53.

In the optical photographing assembly according to the 1st embodiment,when an axial distance between the second lens element 120 and the thirdlens element 130 is T23, and a central thickness of the first lenselement 110 is CT1, the following condition is satisfied: T23/CT1=0.07.

In the optical photographing assembly according to the 1st embodiment,when a curvature radius of the object-side surface 121 of the secondlens element 120 is R3, and a curvature radius of the image-side surface122 of the second lens element 120 is R4, the following condition issatisfied: (R3−R4)/(R3+R4)=−0.48.

In the optical photographing assembly according to the 1st embodiment,when a curvature radius of the object-side surface 131 of the third lenselement 130 is R5, and a curvature radius of the image-side surface 132of the third lens element 130 is R6, the following condition issatisfied: (R5+R6)/(R5−R6)=−0.33.

In the optical photographing assembly according to the 1st embodiment,when the focal length of the optical photographing assembly is f, and acurvature radius of the object-side surface 141 of the fourth lenselement 140 is R7, the following condition is satisfied: f/R7=−4.98.

In the optical photographing assembly according to the 1st embodiment,when a focal length of the first lens element 110 is f1, and a focallength of the second lens element 120 is f2, the following condition issatisfied: |f1/f2|=0.87.

In the optical photographing assembly according to the 1st embodiment,when the focal length of the optical photographing assembly is f, afocal length of the fourth lens element 140 is f4, and a focal length ofthe fifth lens element 150 is f5, the following conditions aresatisfied: f/f4=−0.57; and f/f5=−0.31.

In the optical photographing assembly according to the 1st embodiment,when a focal length of the first lens element 110 is f1, a focal lengthof the second lens element 120 is f2, and the focal length of theoptical photographing assembly is f, the following condition issatisfied: |f/f1|+|f/f2|=3.97.

In the optical photographing assembly according to the 1st embodiment,when the central thickness of the first lens element 110 is CT1, acentral thickness of the second lens element 120 is CT2, a centralthickness of the third lens element 130 is CT3, a central thickness ofthe fourth lens element 140 is CT4, a central thickness of the fifthlens element 150 is CT5, and a sum of thicknesses of the lens elementsof the optical photographing assembly is ΣCT (ΣCT=CT1+CT2+CT3+CT4+CT5),the following condition is satisfied: CT1/(ΣCT−CT1)=1.29.

In the optical photographing assembly according to the 1st embodiment,when the sum of thicknesses of the lens elements of the opticalphotographing assembly is ΣCT, an axial distance between the first lenselement 110 and the second lens element 120 is T12, the axial distancebetween the second lens element 120 and the third lens element 130 isT23, an axial distance between the third lens element 130 and the fourthlens element 140 is T34, an axial distance between the fourth lenselement 140 and the fifth lens element 150 is T45, and a sum of axialdistances between every two of the lens elements of the opticalphotographing assembly that are adjacent to each other is ΣAT (that is,ΣAT=T12+T23+T34+T45), the following condition is satisfied:ΣCT/ΣAT=4.39.

In the optical photographing assembly according to the 1st embodiment,when the focal length of the optical photographing assembly is f, and amaximum image height of the optical photographing assembly is ImgH, thefollowing condition is satisfied: f/ImgH=3.97.

FIG. 19 is a schematic view of parameters of the optical photographingassembly according to the 1st embodiment of the present disclosure. InFIG. 19, when an axial distance between an object-side surface of onelens element closest to the imaged object (which is the object-sidesurface 111 of the first lens element 110 according to the 1stembodiment) and the image-side surface of one lens element closest tothe image surface 170 (which is the image-side surface 152 of the fifthlens element 150 according to the 1st embodiment) is TD, and the focallength of the optical photographing assembly is f, the followingcondition is satisfied: f/TD=1.97.

In the optical photographing assembly according to the 1st embodiment,when an axial distance between the aperture stop 100 and the image-sidesurface of the lens element closest to the image surface 170 (which isthe image-side surface 152 of the fifth lens element 150 according tothe 1st embodiment) is SD, and the axial distance between theobject-side surface of the lens element closest to the imaged object(which is the object-side surface 111 of the first lens element 110according to the 1st embodiment) and the image-side surface of the lenselement closest to the image surface 170 (which is the image-sidesurface 152 of the fifth lens element 150 according to the 1stembodiment) is TD, and the following condition is satisfied: SD/TD=0.86.

In the optical photographing assembly according to the 1st embodiment,when an axial distance between the image-side surface of the lenselement closest to the image surface 170 (which is the image-sidesurface 152 of the fifth lens element 150 according to the 1stembodiment) and the image surface 170 is BL, and the axial distancebetween the object-side surface of the lens element closest to theimaged object (which is the object-side surface 111 of the first lenselement 110 according to the 1st embodiment) and the image-side surfaceof the lens element closest to the image surface 170 (which is theimage-side surface 152 of the fifth lens element 150 according to the1st embodiment) is TD, and the following condition is satisfied:BL/TD=1.25.

FIG. 20 is a schematic view of the parameter TP of the opticalphotographing assembly according to the 1st embodiment of the presentdisclosure. In FIG. 20, a prism has a first optical axis path X whichwith a light path length TPx (that is, an optical length from anincident surface of the prism to a reflective surface of the prism) anda second optical axis path Y which with a light path length TPy (thatis, an optical length from the reflective surface of the prism to anexit surface of the prism), when a sum of light path lengths on theoptical axis in the one prism is TP, TP is defined as a sum of TPx andTPy, such as TP=TPx+TPy. According to the 1st embodiment, the opticalphotographing assembly includes two prisms 180, 190, thus the parameterTP1 is a sum of length of inner optical axis paths of the prism 180, andTP2 is a sum of length of inner optical axis paths of the prism 190, andwill not illustrate respectively. In detail, in FIGS. 19 and 20, whenthe axial distance between the object-side surface of the lens elementclosest to the imaged object (which is the object-side surface 111 ofthe first lens element 110 according to the 1st embodiment) and theimage-side surface of the lens element closest to the image surface 170(which is the image-side surface 152 of the fifth lens element 150according to the 1st embodiment) is TD, the sum of light path lengths onthe optical axis in the prism 180 is TP1, the sum of light path lengthson the optical axis in the prism 190 is TP2 (wherein, TP1 and TP2 aresatisfied the definitions of TP in FIGS. 1A-1C, the specification andthe claims of the present disclosure), the following condition issatisfied: TD/TP1=1.02; and TD/TP2=1.00.

In FIG. 19, the optical photographing assembly according to the 1stembodiment, when an effective radius of a lens surface closest to theimaged object (which is the object-side surface 111 of the first lenselement 110 according to the 1st embodiment) is Yo, and an effectiveradius of a lens surface closest to the image surface 170 (which is theimage-side surface 152 of the fifth lens element 150 according to the1st embodiment) is Yi, the following condition is satisfied: Yo/Yi=1.06.

In the optical photographing assembly according to the 1st embodiment,when a maximum among effective radii of object-side and image-sidesurfaces of the lens elements of the optical photographing assembly(which is an effective radius of the object-side surface 111 of thefirst lens element 110 according to the 1st embodiment) is Ymax, and aminimum among effective radii of the object-side and the image-sidesurfaces of the lens elements of the optical photographing assembly(which is an effective radius of the image-side surface 132 of the thirdlens element 130 according to the 1st embodiment) is Ymin, the followingcondition is satisfied: Ymax/Ymin=1.30.

In the optical photographing assembly according to the 1st embodiment,the prism 180 can be the object-side reflective element, the prism 190can be an image-side reflective element, when an Abbe number of theobject-side reflective element is VRO, and an Abbe number of theimage-side reflective element is VRI, the following conditions aresatisfied: VRO=64.2; and VRI=64.2.

In FIG. 19, the optical photographing assembly according to the 1stembodiment, when an axial distance between the object-side surface 111of the first lens element 110 and the aperture stop 100 is Dr1s, and anaxial distance between the image-side surface 112 of the first lenselement 110 and the aperture stop 100 is Dr2s, the following conditionis satisfied: |Dr1s/Dr2s|=0.45.

In FIG. 19, the optical photographing assembly according to the 1stembodiment, when a width parallel to the optical axis of the object-sidereflective element (the prism 180) is WPO, and a width parallel to theoptical axis of the image-side reflective element (the prism 190) isWPI, and the focal length of the optical photographing assembly is f,the following condition is satisfied: (WPO+WPI)/f=1.01.

In FIG. 19, the optical photographing assembly according to the 1stembodiment, when an axial distance between the object-side reflectiveelement (the prism 180) and the image-side reflective element (the prism190) is DP, the width parallel to the optical axis of the object-sidereflective element (the prism 180) is WPO, and the width parallel to theoptical axis of the image-side reflective element (the prism 190) isWPI, the following condition is satisfied: DP/(WPO+WPI)=0.59.

The detailed optical data of the 1st embodiment are shown in Table 1 andthe aspheric surface data are shown in Table 2 below.

TABLE 1 1st Embodiment f = 10.00 mm, Fno = 2.80, HFOV = 14.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Prism Plano 5.000 Glass 1.517 64.2 — 2 Plano1.027 3 Ape. Stop Plano −0.727 4 Lens 1 2.583 ASP 2.335 Plastic 1.54455.9 4.70 5 −175.942 ASP 0.346 6 Lens 2 −2.232 ASP 0.400 Plastic 1.66020.4 −5.41 7 −6.368 ASP 0.165 8 Lens 3 9.730 ASP 0.494 Plastic 1.66020.4 9.85 9 −19.220 ASP 0.375 10 Lens 4 −2.008 ASP 0.511 Plastic 1.66020.4 −17.67 11 −2.671 ASP 0.057 12 Lens 5 95.590 ASP 0.400 Plastic 1.54455.9 −31.91 13 14.661 ASP 0.200 14 Filter Plano 0.210 Glass 1.517 64.2 —15 Plano 0.200 16 Prism Plano 5.100 Glass 1.517 64.2 — 17 Plano 0.635 18Image Plano — Reference wavelength is 587.6 nm (d-line). Both of Prisms(180, 190) have reflective surface.

TABLE 2 Aspheric Coefficients Surface # 4 5 6 7 8 k=  3.4365E−01−9.9000E+01 −1.3577E+01 −5.6125E+01 2.8814E+01 A4= −2.3887E−03 2.2264E−02  1.0524E−01  3.2089E−01 1.3280E−01 A6=  1.2932E−05−9.0703E−04 −1.2145E−01 −4.7020E−01 −3.5569E−01  A8= −2.8993E−04−1.2118E−02  6.5451E−02  4.2664E−01 3.8286E−01 A10=  7.6825E−05 8.9939E−03 −1.4092E−02 −2.6340E−01 −2.6949E−01  A12= −1.4469E−05−1.8870E−03  4.2756E−04  1.0189E−01 1.1273E−01 A14= −1.7223E−02−1.9250E−02  Surface # 9 10 11 12 13 k= 4.1023E+01 −3.2155E+00−1.8979E+00 8.9439E+01 7.2076E+01 A4= 7.4403E−03  6.1164E−02  3.1725E−02−1.4698E−01  −1.1214E−01  A6= −1.1714E−01  −1.4157E−01 −1.7387E−021.0666E−01 6.5071E−02 A8= 1.2701E−01  2.1595E−01  3.2344E−02−8.9684E−02  −4.6684E−02  A10= −3.9988E−02  −1.4170E−01 −2.8165E−024.1819E−02 2.2430E−02 A12= −5.3049E−03   4.2022E−02  1.0910E−02−7.7463E−03  −5.6644E−03  A14= 4.2574E−03 −4.7881E−03 −1.6218E−033.9728E−04 5.8335E−04

In Table 1, the detailed optical data of the 1st embodiment shown inFIG. 1A are listed, wherein the curvature radius, the thickness and thefocal length are shown in millimeters (mm). Surface numbers 0-16represent the surfaces sequentially arranged from the object side to theimage side along the optical axis. In Table 2, k represents the coniccoefficient of the equation of the aspheric surface profiles. A4-A16represent the aspheric coefficients ranging from the 4th order to the16th order. The tables presented below for each embodiment correspond toschematic parameter and aberration curves of each embodiment, and termdefinitions of the tables are the same as those in Table 1 and Table 2of the 1st embodiment. Therefore, an explanation in this regard will notbe provided again.

Furthermore, FIG. 1B and FIG. 1C are schematic views of the opticalphotographing assembly according to the 1st embodiment of FIG. 1A whichinclude different shapes and arrangements of the prisms 180, 190,respectively. In FIG. 1B and FIG. 1C, the optical data of the prisms180, 190 are the same as the optical data in Table 1, wherein thedifferences between FIG. 1A and FIG. 1B or FIG. 1A and FIG. 1C are theshapes and arrangements of the prisms 180, 190 so as to change thedirections of the incident light of the optical photographing assemblyand the outgoing light which is for imaging on the image surface 170.Therefore, it is favorable for applying to various image capturingapparatuses or electronic devices. Moreover, In FIG. 1B, an incidentlight through the object-side reflective element (prism 180) into theoptical photographing assembly and the outgoing light through theimage-side reflective element (prism 190) are on the same side of theoptical axis of the lens elements.

2nd Embodiment

FIG. 3A is a schematic view of an optical photographing assemblyaccording to the 2nd embodiment of the present disclosure. FIG. 4A showsspherical aberration curves, astigmatic field curves and a distortioncurve of the optical photographing assembly when an object distancethereof is infinite according to the 2nd embodiment. FIG. 4B showsspherical aberration curves, astigmatic field curves and a distortioncurve of the optical photographing assembly when the object distancethereof is 400 mm according to the 2nd embodiment. In FIG. 3A, theoptical photographing assembly includes, in order from an object side toan image side, a prism 280, an aperture stop 200, a first lens element210, a second lens element 220, a third lens element 230, a fourth lenselement 240, a fifth lens element 250, a filter 260, a prism 290 and animage surface 270. The optical photographing assembly has a total offive lens elements (210-250), and there is an air space between everytwo lens elements of the first lens element 210, the second lens element220, the third lens element 230, the fourth lens element 240 and thefifth lens element 250 that are adjacent to each other.

The first lens element 210 with positive refractive power has anobject-side surface 211 being convex and an image-side surface 212 beingconvex. The first lens element 210 is made of a plastic material, andhas the object-side surface 211 and the image-side surface 212 beingboth aspheric. In the 2nd embodiment, the first lens element 210 is amovable focusing lens element, and there is a relative displacementbetween the first lens element 210 and the second lens element 220. InFIG. 3A, the symbol of double arrow under the first lens element 210means that the first lens element 210 can be moved relative to thesecond lens element 220 along the optical axis. It is relativelystationary between every two of the second lens element 220, the thirdlens element 230, the fourth lens element 240 and the fifth lens element250.

The second lens element 220 with negative refractive power has anobject-side surface 221 being concave and an image-side surface 222being convex. The second lens element 220 is made of a plastic material,and has the object-side surface 221 and the image-side surface 222 beingboth aspheric.

The third lens element 230 with positive refractive power has anobject-side surface 231 being convex and an image-side surface 232 beingconvex. The third lens element 230 is made of a plastic material, andhas the object-side surface 231 and the image-side surface 232 beingboth aspheric.

The fourth lens element 240 with negative refractive power has anobject-side surface 241 being concave and an image-side surface 242being convex in a paraxial region thereof. The fourth lens element 240is made of a plastic material, and has the object-side surface 241 andthe image-side surface 242 being both aspheric.

The fifth lens element 250 with positive refractive power has anobject-side surface 251 being convex and an image-side surface 252 beingconcave. The fifth lens element 250 is made of a plastic material, andhas the object-side surface 251 and the image-side surface 252 beingboth aspheric. Furthermore, both of the object-side surface 251 and theimage-side surface 252 of the fifth lens element 250 include at leastone inflection point.

The filter 260 is made of a glass material and located between the fifthlens element 250 and the image surface 270, and will not affect thefocal length of the optical photographing assembly.

In the optical photographing assembly according to the 2nd embodiment,the optical photographing assembly includes two prisms 280, 290 whichare made of glass materials. The prism 280 can be an object-sidereflective element located between an imaged object (its referencenumeral is omitted) and the aperture stop 200 on an optical path (whichis located on an optical axis of the optical photographing assemblyaccording to the 2nd embodiment). The prism 290 can be an image-sidereflective element located between the filter 260 and the image surface270 on the optical path (which is located on the optical axis of theoptical photographing assembly according to the 2nd embodiment).

The detailed optical data of the 2nd embodiment are shown in Table 3 andthe aspheric surface data are shown in Table 4 below.

TABLE 3 2nd Embodiment f = 10.00 mm/9.79 mm, Fno = 2.80, HFOV = 14.1deg./13.9 deg. Thickness Surface # Curvature Radius Position 1 Position2Material Index Abbe # Focal Length 0 Object Plano Infinity 400.000 1Prism Plano 5.000 Glass 1.847 23.8 — 2 Plano 1.426 3 Ape. Stop Plano−0.726 4 Lens 1 2.608 ASP 2.077 Plastic 1.544 55.9 4.60 5 −43.274 ASP0.375 0.428 6 Lens 2 −2.113 ASP 0.468 Plastic 1.660 20.4 −5.22 7 −5.950ASP 0.141 8 Lens 3 8.592 ASP 0.679 Plastic 1.660 20.4 6.72 9 −8.871 ASP0.329 10 Lens 4 −1.908 ASP 0.529 Plastic 1.615 26.0 −6.69 11 −3.935 ASP0.118 12 Lens 5 11.858 ASP 0.442 Plastic 1.544 55.9 84.15 13 15.796 ASP0.200 14 Filter Plano 0.210 Glass 1.517 64.2 — 15 Plano 0.200 16 PrismPlano 5.100 Glass 1.517 64.2 — 17 Plano 0.667 18 Image Plano — Referencewavelength is 587.6 nm (d-line). Both of Prisms (280, 290) havereflective surface. Both of f and HFOV include data under the objectdistance being infinite and 400 mm.

TABLE 4 Aspheric Coefficients Surface # 4 5 6 7 8 k=  3.2369E−019.9000E+01 −1.3081E+01 −4.6138E+01 2.7888E+01 A4= −2.2324E−03 1.9004E−02 7.5068E−02  2.8469E−01 7.8784E−02 A6=  1.1254E−04 −1.4428E−03 −6.2372E−02 −3.6842E−01 −2.3684E−01  A8= −1.9369E−04 6.0405E−04 2.9471E−02  3.0495E−01 2.2073E−01 A10=  4.8890E−05 −1.9373E−04 −6.4473E−03 −1.7173E−01 −1.2780E−01  A12= −5.6958E−06 2.9910E−04 5.0905E−04  5.9366E−02 4.6476E−02 A14= −8.8332E−03 −7.1898E−03  Surface# 9 10 11 12 13 k=  3.0396E+01 −3.5850E+00 −1.3708E+01  −8.1028E+007.2976E+01 A4= −5.6339E−02  2.2869E−02 3.1945E−02 −1.0860E−01−8.6809E−02  A6= −1.2101E−03 −3.3768E−03 4.0545E−02  6.9059E−023.5208E−02 A8=  3.6543E−02  5.1575E−02 −6.4039E−02  −8.3131E−02−2.8802E−02  A10= −6.2712E−03 −5.0930E−02 3.4189E−02  4.9523E−021.6372E−02 A12= −6.9518E−03  1.8432E−02 −8.6884E−03  −1.2168E−02−4.4883E−03  A14=  2.5174E−03 −2.8196E−03 8.6650E−04  1.0877E−034.9911E−04

In the 2nd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 2nd embodiment, so an explanation in thisregard will not be provided again. Further, one condition with two datarefers to, from left to right, under the object distance being infiniteand 400 mm, respectively.

According to the 2nd embodiment, the first lens element 210 is a movablefocusing lens element. When an axial distance between the first lenselement 210 and the second lens element 220 with an object distance atinfinity is T12i, an axial distance between the first lens element 210and the second lens element 220 with the object distance at 400 mm isT12m, and the condition “T12i/T12m” satisfies the following data.

Moreover, these parameters can be calculated from Table 3 and Table 4 asthe following values and satisfy the following conditions:

2nd Embodiment f [mm] 10.00/9.79  ΣCT/ΣAT 4.36/4.13 Fno. 2.80 f/ImgH3.97/3.89 HFOV [deg.] 14.1/13.9 f/TD 1.94/1.88 V2 20.4 SD/TD 0.86/0.86V3 20.4 BL/TD 1.24/1.22 V4 26.0 TD/TP1 1.03/1.04 tan(FOV) 0.54/0.53TD/TP2 1.01/1.02 T23/CT1 0.07 Yo/Yi 1.05/1.06 (R3 − R4)/(R3 + R4) −0.48Ymax/Ymin 1.26/1.28 (R5 + R6)/(R5 − R6) −0.02 VRO 23.8 f/R7 −5.24/−5.13VRI 64.2 |f1/f2| 0.88 T12i/T12m 0.88 f/f4 −1.49/−1.46 |Dr1s/Dr2s| 0.54f/f5 0.12/0.12 (WPO + WPI)/f 1.01/1.03 |f/f1| + [f/f2| 4.09/4.01DP/(WPO + WPI) 0.64/0.65 CT1/(ΣCT − CT1) 0.98

Furthermore, FIG. 3B and FIG. 3C are schematic views of the opticalphotographing assembly according to the 2nd embodiment of FIG. 3A whichinclude different shapes and arrangements of the prisms 280, 290,respectively. In FIG. 3B and FIG. 3C, the optical data of the prisms280, 290 are the same as the optical data in Table 3, wherein thedifferences between FIG. 3A and FIG. 3B or FIG. 3A and FIG. 3C are theshapes and arrangements of the prisms 280, 290 so as to change thedirections of the incident light of the optical photographing assemblyand the outgoing light which is for imaging on the image surface 270.Therefore, it is favorable for applying to various image capturingapparatuses or to electronic devices. Moreover, In FIG. 3B, an incidentlight through the object-side reflective element (prism 280) into theoptical photographing assembly and the outgoing light through theimage-side reflective element (prism 290) are on the same side of theoptical axis of the lens elements.

3rd Embodiment

FIG. 5A is a schematic view of an optical photographing assemblyaccording to the 3rd embodiment of the present disclosure. FIG. 6 showsspherical aberration curves, astigmatic field curves and a distortioncurve of the optical photographing assembly according to the 3rdembodiment. In FIG. 5A, the optical photographing assembly includes, inorder from an object side to an image side, an aperture stop 300, afirst lens element 310, a second lens element 320, a third lens element330, a fourth lens element 340, a fifth lens element 350, a filter 360,a prism 390 and an image surface 370. The optical photographing assemblyhas a total of five lens elements (310-350), and there is an air spacebetween every two lens elements of the first lens element 310, thesecond lens element 320, the third lens element 330, the fourth lenselement 340 and the fifth lens element 350 that are adjacent to eachother.

The first lens element 310 with positive refractive power has anobject-side surface 311 being convex and an image-side surface 312 beingconvex. The first lens element 310 is made of a plastic material, andhas the object-side surface 311 and the image-side surface 312 beingboth aspheric.

The second lens element 320 with negative refractive power has anobject-side surface 321 being concave and an image-side surface 322being convex. The second lens element 320 is made of a plastic material,and has the object-side surface 321 and the image-side surface 322 beingboth aspheric.

The third lens element 330 with positive refractive power has anobject-side surface 331 being convex and an image-side surface 332 beingconvex. The third lens element 330 is made of a plastic material, andhas the object-side surface 331 and the image-side surface 332 beingboth aspheric.

The fourth lens element 340 with negative refractive power has anobject-side surface 341 being concave and an image-side surface 342being convex in a paraxial region thereof. The fourth lens element 340is made of a plastic material, and has the object-side surface 341 andthe image-side surface 342 being both aspheric.

The fifth lens element 350 with negative refractive power has anobject-side surface 351 being convex and an image-side surface 352 beingconcave. The fifth lens element 350 is made of a plastic material, andhas the object-side surface 351 and the image-side surface 352 beingboth aspheric. Furthermore, both of the object-side surface 351 and theimage-side surface 352 of the fifth lens element 350 include at leastone inflection point.

The filter 360 is made of a glass material and located between the fifthlens element 350 and the image surface 370, and will not affect thefocal length of the optical photographing assembly.

In the optical photographing assembly according to the 3rd embodiment,the optical photographing assembly includes the prism 390 which is madeof a glass material. The prism 390 can be an image-side reflectiveelement located between the filter 360 and the image surface 370 on theoptical path (which is located on the optical axis of the opticalphotographing assembly according to the 3rd embodiment).

The detailed optical data of the 3rd embodiment are shown in Table 5 andthe aspheric surface data are shown in Table 6 below.

TABLE 5 3rd Embodiment f = 10.00 mm, Fno = 2.80, HFOV = 14.1 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Ape. Stop Plano −0.727 2 Lens 1 2.583 ASP2.335 Plastic 1.544 55.9 4.70 3 −175.942 ASP 0.346 4 Lens 2 −2.232 ASP0.400 Plastic 1.660 20.4 −5.41 5 −6.368 ASP 0.165 6 Lens 3 9.730 ASP0.494 Plastic 1.660 20.4 9.85 7 −19.220 ASP 0.375 8 Lens 4 −2.008 ASP0.511 Plastic 1.660 20.4 −17.67 9 −2.671 ASP 0.057 10 Lens 5 95.590 ASP0.400 Plastic 1.544 55.9 −31.91 11 14.661 ASP 0.200 12 Filter Plano0.210 Glass 1.517 64.2 — 13 Plano 0.200 14 Prism Plano 5.100 Glass 1.51764.2 — 15 Plano 0.605 16 Image Plano — Reference wavelength is 587.6 nm(d-line). Prism (390) has reflective surface.

TABLE 6 Aspheric Coefficients Surface # 2 3 4 5 6 k=  3.4365E−01−9.9000E+01 −1.3577E+01 −5.6125E+01 2.8814E+01 A4= −2.3887E−03 2.2264E−02  1.0524E−01  3.2089E−01 1.3280E−01 A6=  1.2932E−05−9.0703E−04 −1.2145E−01 −4.7020E−01 −3.5569E−01  A8= −2.8993E−04−1.2118E−02  6.5451E−02  4.2664E−01 3.8286E−01 A10=  7.6825E−05 8.9939E−03 −1.4092E−02 −2.6340E−01 −2.6949E−01  A12= −1.4469E−05−1.8870E−03  4.2756E−04  1.0189E−01 1.1273E−01 A14= −1.7223E−02−1.9250E−02  Surface # 7 8 9 10 11 k= 4.1023E+01 −3.2155E+00 −1.8979E+008.9439E+01 7.2076E+01 A4= 7.4403E−03  6.1164E−02  3.1725E−02−1.4698E−01  −1.1214E−01  A6= −1.1714E−01  −1.4157E−01 −1.7387E−021.0666E−01 6.5071E−02 A8= 1.2701E−01  2.1595E−01  3.2344E−02−8.9684E−02  −4.6684E−02  A10= −3.9988E−02  −1.4170E−01 −2.8165E−024.1819E−02 2.2430E−02 A12= −5.3049E−03   4.2022E−02  1.0910E−02−7.7463E−03  −5.6644E−03  A14= 4.2574E−03 −4.7881E−03 −1.6218E−033.9728E−04 5.8335E−04

In the 3rd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 3rd embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 5 and Table 6 asthe following values and satisfy the following conditions:

3rd Embodiment f [mm] 10.00 ΣCT/ΣAT 4.39 Fno 2.80 f/ImgH 3.97 HFOV[deg.] 14.1 f/TD 1.97 V2 20.4 SD/TD 0.86 V3 20.4 BL/TD 1.24 V4 20.4TD/TP1 — tan(FOV) 0.54 TD/TP2 1.00 T23/CT1 0.07 Yo/Yi 1.06 (R3 −R4)/(R3 + R4) −0.48 Ymax/Ymin 1.29 (R5 + R6)/(R5 − R6) −0.33 VRO — f/R7−4.98 VRI 64.2  [f1/f2| 0.87 T12i/T12m — f/f4 −0.57 |Dr1s/Dr2s| 0.45f/f5 −0.31 (WPO + WPI)/f — |f/f1| + |f/f2] 3.97 DP/(WPO + WPI) —CT1/(ΣCT − CT1) 1.29

Furthermore, FIG. 5B is a schematic view of the optical photographingassembly according to the 3rd embodiment of FIG. 5A which includesdifferent shapes and arrangements of the prism 390. In FIG. 5B, theoptical data of the prism 390 are the same as the optical data in Table5, wherein the differences between FIG. 5A and FIG. 5B are the shapesand arrangements of the prism 390 so as to change the directions of theincident light of the optical photographing assembly and the outgoinglight which is for imaging on the image surface 370. Therefore, it isfavorable for applying to various image capturing apparatuses orelectronic devices.

4th Embodiment

FIG. 7 is a schematic view of an optical photographing assemblyaccording to the 4th embodiment of the present disclosure. FIG. 8 showsspherical aberration curves, astigmatic field curves and a distortioncurve of the optical photographing assembly according to the 4thembodiment. In FIG. 7, the optical photographing assembly includes, inorder from an object side to an image side, an aperture stop 400, afirst lens element 410, a second lens element 420, a third lens element430, a fourth lens element 440, a fifth lens element 450, a filter 460and an image surface 470. The optical photographing assembly has a totalof five lens elements (410-450), and there is an air space between everytwo lens elements of the first lens element 410, the second lens element420, the third lens element 430, the fourth lens element 440 and thefifth lens element 450 that are adjacent to each other.

The first lens element 410 with positive refractive power has anobject-side surface 411 being convex and an image-side surface 412 beingconvex. The first lens element 410 is made of a plastic material, andhas the object-side surface 411 and the image-side surface 412 beingboth aspheric.

The second lens element 420 with negative refractive power has anobject-side surface 421 being concave and an image-side surface 422being convex. The second lens element 420 is made of a plastic material,and has the object-side surface 421 and the image-side surface 422 beingboth aspheric.

The third lens element 430 with positive refractive power has anobject-side surface 431 being convex and an image-side surface 432 beingconvex. The third lens element 430 is made of a plastic material, andhas the object-side surface 431 and the image-side surface 432 beingboth aspheric.

The fourth lens element 440 with negative refractive power has anobject-side surface 441 being concave and an image-side surface 442being concave in a paraxial region thereof. The fourth lens element 440is made of a plastic material, and has the object-side surface 441 andthe image-side surface 442 being both aspheric.

The fifth lens element 450 with positive refractive power has anobject-side surface 451 being convex and an image-side surface 452 beingconcave. The fifth lens element 450 is made of a plastic material, andhas the object-side surface 451 and the image-side surface 452 beingboth aspheric. Furthermore, both of the object-side surface 451 and theimage-side surface 452 of the fifth lens element 450 include at leastone inflection point.

The filter 460 is made of a glass material and located between the fifthlens element 450 and the image surface 470, and will not affect thefocal length of the optical photographing assembly.

The detailed optical data of the 4th embodiment are shown in Table 7 andthe aspheric surface data are shown in Table 8 below.

TABLE 7 4th Embodiment f = 10.00 mm, Fno = 2.80, HFOV = 14.1 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Ape. Stop Plano −0.413 2 Lens 1 3.202 ASP1.676 Plastic 1.544 55.9 4.00 3 −5.549 ASP 0.222 4 Lens 2 −1.975 ASP0.832 Plastic 1.639 23.5 −4.45 5 −7.515 ASP 0.148 6 Lens 3 10.730 ASP0.915 Plastic 1.660 20.4 3.22 7 −2.561 ASP 0.100 8 Lens 4 −6.710 ASP0.500 Plastic 1.639 23.5 −2.80 9 2.508 ASP 0.555 10 Lens 5 4.237 ASP0.561 Plastic 1.544 55.9 30.07 11 5.453 ASP 0.500 12 Filter Plano 0.200Glass 1.517 64.2 — 13 Plano 4.233 14 Image Plano — Reference wavelengthis 587.6 nm (d-line).

TABLE 8 Aspheric Coefficients Surface # 2 3 4 5 6 k= −7.5216E−01−1.5318E+00 −7.7246E+00 −9.9000E+01 2.7030E+01 A4= −5.6388E−04 3.5825E−02  5.5410E−02  9.2546E−02 −1.8601E−02  A6= −8.7061E−04−2.3164E−02 −3.8295E−02 −2.3575E−02 3.2093E−02 A8= −4.1063E−05 6.8588E−03  1.3530E−02 −2.0280E−02 −2.6895E−02  A10=  1.7746E−05−1.4079E−03 −2.8451E−03  1.2971E−02 3.2294E−03 A12= −1.6361E−05 1.5797E−04  3.1215E−04 −2.9750E−03 1.9362E−03 A14=  3.2115E−04−3.7463E−04  Surface # 7 8 9 10 11 k= −3.5899E+00  −5.1682E+00−1.5545E+00 −1.9541E+01  4.3337E+00 A4= 2.5917E−02  6.7838E−02−4.6324E−02 −5.1589E−02 −6.2643E−02 A6= 5.8681E−03 −4.9099E−02−6.0584E−03 −1.1974E−02  4.3553E−03 A8= −2.0723E−02   1.2250E−02 1.2653E−02  7.5396E−03 −7.8621E−04 A10= 1.0425E−02 −1.3325E−03−7.1867E−03 −3.5774E−03  4.4819E−04 A12= −2.2330E−03   1.5795E−04 1.7733E−03  9.0815E−04 −8.8343E−05 A14= 2.0654E−04 −4.0985E−06

In the 4th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 4th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 7 and Table 8 asthe following values and satisfy the following conditions:

4th Embodiment f [mm] 10.00 ΣCT/ΣAT 4.37 Fno 2.80 f/ImgH 3.97 HFOV[deg.] 14.1 f/TD 1.81 V2 23.5 SD/TD 0.93 V3 20.4 BL/TD 0.90 V4 23.5TD/TP1 — tan(FOV) 0.53 TD/TP2 — T23/CT1 0.09 Yo/Yi 1.02 (R3 − R4)/(R3 +R4) −0.58 Ymax/Ymin 1.17 (R5 + R6)/(R5 − R6) 0.61 VRO — f/R7 −1.49 VRI —|f1/f2| 0.90 T12i/T12m — f/f4 −3.57 |Dr1s/Dr2s| 0.33 f/f5 0.33 (WPO +WPI)/f — |f/f1| + |f/f2| 4.74 DP/(WPO + WPI) — CT1/(ΣCT − CT1) 0.60

5th Embodiment

FIG. 9 is a schematic view of an optical photographing assemblyaccording to the 5th embodiment of the present disclosure. FIG. 10 showsspherical aberration curves, astigmatic field curves and a distortioncurve of the optical photographing assembly according to the 5thembodiment. In FIG. 9, the optical photographing assembly includes, inorder from an object side to an image side, an aperture stop 500, afirst lens element 510, a second lens element 520, a third lens element530, a fourth lens element 540, a fifth lens element 550, a filter 560and an image surface 570. The optical photographing assembly has a totalof five lens elements (510-550), and there is an air space between everytwo lens elements of the first lens element 510, the second lens element520, the third lens element 530, the fourth lens element 540 and thefifth lens element 550 that are adjacent to each other.

The first lens element 510 with positive refractive power has anobject-side surface 511 being convex and an image-side surface 512 beingconcave. The first lens element 510 is made of a plastic material, andhas the object-side surface 511 and the image-side surface 512 beingboth aspheric.

The second lens element 520 with negative refractive power has anobject-side surface 521 being concave and an image-side surface 522being convex. The second lens element 520 is made of a plastic material,and has the object-side surface 521 and the image-side surface 522 beingboth aspheric.

The third lens element 530 with positive refractive power has anobject-side surface 531 being convex and an image-side surface 532 beingconcave. The third lens element 530 is made of a plastic material, andhas the object-side surface 531 and the image-side surface 532 beingboth aspheric.

The fourth lens element 540 with positive refractive power has anobject-side surface 541 being concave and an image-side surface 542being convex in a paraxial region thereof. The fourth lens element 540is made of a plastic material, and has the object-side surface 541 andthe image-side surface 542 being both aspheric.

The fifth lens element 550 with negative refractive power has anobject-side surface 551 being concave and an image-side surface 552being concave. The fifth lens element 550 is made of a plastic material,and has the object-side surface 551 and the image-side surface 552 beingboth aspheric. Furthermore, the image-side surface 552 of the fifth lenselement 550 includes at least one inflection point.

The filter 560 is made of a glass material and located between the fifthlens element 550 and the image surface 570, and will not affect thefocal length of the optical photographing assembly.

The detailed optical data of the 5th embodiment are shown in Table 9 andthe aspheric surface data are shown in Table 10 below.

TABLE 9 5th Embodiment f = 10.00 mm, Fno = 2.80, HFOV = 14.0 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Ape. Stop Plano −0.790 2 Lens 1 2.449 ASP1.948 Plastic 1.544 55.9 4.56 3 157.474 ASP 0.377 4 Lens 2 −2.277 ASP0.451 Plastic 1.660 20.4 −5.27 5 −7.114 ASP 0.162 6 Lens 3 8.809 ASP0.614 Plastic 1.660 20.4 19.57 7 26.931 ASP 0.268 8 Lens 4 −3.197 ASP0.724 Plastic 1.660 20.4 45.74 9 −3.151 ASP 0.392 10 Lens 5 −25.723 ASP0.445 Plastic 1.544 55.9 −17.76 11 15.559 ASP 0.500 12 Filter Plano0.210 Glass 1.517 64.2 — 13 Plano 3.756 14 Image Plano — Referencewavelength is 587.6 nm (d-line).

TABLE 10 Aspheric Coefficients Surface # 2 3 4 5 6 k=  3.4825E−01−9.9000E+01 −1.6707E+01 −5.6125E+01 3.1153E+01 A4= −3.1540E−03 3.2221E−02  1.1728E−01  3.3728E−01 7.8446E−02 A6=  2.8498E−04−8.6956E−03 −1.2785E−01 −4.3295E−01 −2.2635E−01  A8= −5.3145E−04−6.3796E−03  6.2301E−02  3.4406E−01 2.3119E−01 A10=  1.4765E−04 5.5828E−03 −1.2241E−02 −1.8195E−01 −1.4772E−01  A12= −2.3018E−05−9.2421E−04  3.0213E−04  6.4051E−02 5.8334E−02 A14= −1.0436E−02−9.5736E−03  Surface # 7 8 9 10 11 k=  1.8397E+01 −6.2153E+00−4.1401E+00 8.9439E+01  7.5519E+01 A4= −3.1844E−02  4.8784E−02 2.4205E−02 −1.1385E−01  −1.0901E−01 A6= −3.3216E−02 −6.5104E−02−2.5368E−02 7.6606E−03  3.2419E−02 A8=  7.9509E−02  1.2279E−01 4.9285E−02 3.2033E−02 −6.1525E−03 A10= −5.3637E−02 −1.0368E−01−4.1534E−02 −3.2357E−02  −2.7516E−03 A12=  1.2629E−02  3.8244E−02 1.5078E−02 1.1318E−02  1.5909E−03 A14= −5.2081E−03 −1.9137E−03−1.1833E−03  −2.2988E−04

In the 5th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 5th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 9 and Table 10as the following values and satisfy the following conditions:

5th Embodiment f [mm] 10.00 ΣCT/ΣAT 3.49 Fno 2.80 f/ImgH 3.97 HFOV[deg.] 14.0 f/TD 1.86 V2 20.4 SD/TD 0.85 V3 20.4 BL/TD 0.83 V4 20.4TD/TP1 — tan(FOV) 0.53 TD/TP2 — T23/CT1 0.08 Yo/Yi 1.03 (R3 − R4)/(R3 +R4) −0.52 Ymax/Ymin 1.27 (R5 + R6)/(R5 − R6) −1.97 VRO — f/R7 −3.13 VRI— |f1/f2| 0.86 T12i/T12m — f/f4 0.22 |Dr1s/Dr2s[[ 0.68 f/f5 −0.56 (WPO +WPI)/f — |f/f1| + ]]|f/f2| 4.09 DP/(WPO + WPI) — CT1/(ΣCT − CT1) 0.87

6th Embodiment

FIG. 11A is a schematic view of an optical photographing assemblyaccording to the 6th embodiment of the present disclosure. FIG. 12 showsspherical aberration curves, astigmatic field curves and a distortioncurve of the optical photographing assembly according to the 6thembodiment. In FIG. 11A, the optical photographing assembly includes, inorder from an object side to an image side, a prism 680, an aperturestop 600, a first lens element 610, a second lens element 620, a thirdlens element 630, a fourth lens element 640, a fifth lens element 650, afilter 660, a prism 690 and an image surface 670. The opticalphotographing assembly has a total of five lens elements (610-650), andthere is an air space between every two lens elements of the first lenselement 610, the second lens element 620, the third lens element 630,the fourth lens element 640 and the fifth lens element 650 that areadjacent to each other.

The first lens element 610 with positive refractive power has anobject-side surface 611 being convex and an image-side surface 612 beingconvex. The first lens element 610 is made of a plastic material, andhas the object-side surface 611 and the image-side surface 612 beingboth aspheric.

The second lens element 620 with negative refractive power has anobject-side surface 621 being concave and an image-side surface 622being convex. The second lens element 620 is made of a plastic material,and has the object-side surface 621 and the image-side surface 622 beingboth aspheric.

The third lens element 630 with positive refractive power has anobject-side surface 631 being convex and an image-side surface 632 beingconvex. The third lens element 630 is made of a plastic material, andhas the object-side surface 631 and the image-side surface 632 beingboth aspheric.

The fourth lens element 640 with positive refractive power has anobject-side surface 641 being concave and an image-side surface 642being convex in a paraxial region thereof. The fourth lens element 640is made of a plastic material, and has the object-side surface 641 andthe image-side surface 642 being both aspheric.

The fifth lens element 650 with negative refractive power has anobject-side surface 651 being convex and an image-side surface 652 beingconcave. The fifth lens element 650 is made of a plastic material, andhas the object-side surface 651 and the image-side surface 652 beingboth aspheric. Furthermore, both of the object-side surface 651 and theimage-side surface 652 of the fifth lens element 650 include at leastone inflection point.

The filter 660 is made of a glass material and located between the fifthlens element 650 and the image surface 670, and will not affect thefocal length of the optical photographing assembly.

In the optical photographing assembly according to the 6th embodiment,the optical photographing assembly includes two prisms 680, 690 whichare made of glass materials. The prism 680 can be an object-sidereflective element located between an imaged object (its referencenumeral is omitted) and the aperture stop 600 on an optical path (whichis located on an optical axis of the optical photographing assemblyaccording to the 6th embodiment). The prism 690 can be an image-sidereflective element located between the filter 660 and the image surface670 on the optical path (which is located on the optical axis of theoptical photographing assembly according to the 6th embodiment).

The detailed optical data of the 6th embodiment are shown in Table 11and the aspheric surface data are shown in Table 12 below.

TABLE 11 6th Embodiment f = 9.99 mm, Fno = 2.80, HFOV = 14.1 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Prism Plano 5.000 Plastic 1.660 20.4 — 2 Plano1.015 3 Ape. Stop Plano −0.715 4 Lens 1 2.609 ASP 2.365 Plastic 1.54455.9 4.76 5 −207.479 ASP 0.369 6 Lens 2 −2.261 ASP 0.400 Plastic 1.66020.4 −5.5 7 −6.409 ASP 0.162 8 Lens 3 9.673 ASP 0.498 Plastic 1.660 20.49.61 9 −18.035 ASP 0.373 10 Lens 4 −1.998 ASP 0.500 Plastic 1.660 20.4−15.19 11 −2.744 ASP 0.062 12 Lens 5 53.262 ASP 0.400 Plastic 1.544 55.9−37.37 13 14.668 ASP 0.200 14 Filter Plano 0.210 Glass 1.517 64.2 — 15Plano 0.200 16 Prism Plano 5.100 Plastic 1.544 55.9 — 17 Plano 0.596 18Image Plano — Reference wavelength is 587.6 nm (d-line). Both of Prisms(680, 690) have reflective surface.

TABLE 12 Aspheric Coefficients Surface # 4 5 6 7 8 k=  3.4417E−01−9.9000E+01 −1.4120E+01 −5.6125E+01 2.8852E+01 A4= −2.3366E−03 2.3148E−02  1.0681E−01  3.2173E−01 1.2921E−01 A6= −6.3911E−05−4.5544E−03 −1.2681E−01 −4.7007E−01 −3.4199E−01  A8= −2.4564E−04−7.7864E−03  7.2326E−02  4.2120E−01 3.6096E−01 A10=  6.2732E−05 6.7844E−03 −1.7649E−02 −2.5563E−01 −2.5234E−01  A12= −1.2454E−05−1.4899E−03  1.0804E−03  9.7661E−02 1.0623E−01 A14= −1.6417E−02−1.8299E−02  Surface # 9 10 11 12 13 k= 3.8268E+01 −3.3411E+00−2.4406E+00 8.9439E+01 7.2024E+01 A4= 3.6688E−03  6.1062E−02  3.1336E−02−1.4747E−01  −1.1185E−01  A6= −1.0435E−01  −1.3799E−01 −1.3345E−021.1362E−01 6.6739E−02 A8= 1.0862E−01  2.0638E−01  2.3520E−02−1.0036E−01  −4.9355E−02  A10= −2.7259E−02  −1.3279E−01 −2.1049E−024.8920E−02 2.3994E−02 A12= −9.4132E−03   3.8403E−02  8.3481E−03−9.9620E−03  −6.1131E−03  A14= 4.7471E−03 −4.2489E−03 −1.2780E−036.6191E−04 6.3677E−04

In the 6th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 6th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 11 and Table 12as the following values and satisfy the following conditions:

6th Embodiment f [mm] 9.99 ΣCT/ΣAT 4.31 Fno 2.80 f/ImgH 3.97 HFOV [deg.]14.1 f/TD 1.95 V2 20.4 SD/TD 0.86 V3 20.4 BL/TD 1.23 V4 20.4 TD/TP1 1.03tan(FOV) 0.54 TD/TP2 1.01 T23/CT1 0.07 Yo/Yi 1.06 (R3 − R4)/(R3 + R4)−0.48 Ymax/Ymin 1.29 (R5 + R6)/(R5 − R6) −0.30 VRO 20.4 f/R7 −5.00 VRI55.9 |f1/f2| 0.86 T12i/T12m — f/f4 −0.66 |Dr1s/Dr2s| 0.43 f/f5 −0.27(WPO + WPI)/f 1.01 |f/f1| + |f/f2| 3.92 DP/(WPO + WPI) 0.60 CT1/(ΣCT −CT1) 1.32

Furthermore, FIG. 11B and FIG. 11C are schematic views of the opticalphotographing assembly according to the 6th embodiment of FIG. 11A whichinclude different shapes and arrangements of the prisms 680, 690,respectively. In FIG. 11B and FIG. 11C, the optical data of the prisms680, 690 are the same as the optical data in Table 11, wherein thedifferences between FIG. 11A and FIG. 11B or FIG. 11A and FIG. 11C arethe shapes and arrangements of the prisms 680, 690 so as to change thedirections of the incident light of the optical photographing assemblyand the outgoing light which is for imaging on the image surface 670.Therefore, it is favorable for applying to various image capturingapparatuses or electronic devices. Moreover, In FIG. 11B, an incidentlight through the object-side reflective element (prism 680) into theoptical photographing assembly and the outgoing light through theimage-side reflective element (prism 690) are on the same side of theoptical axis of the lens elements.

7th Embodiment

FIG. 13A is a schematic view of an optical photographing assemblyaccording to the 7th embodiment of the present disclosure. FIG. 14Ashows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly when an objectdistance thereof is infinite according to the 7th embodiment. FIG. 14Bshows spherical aberration curves, astigmatic field curves and adistortion curve of the optical photographing assembly when the objectdistance thereof is 400 mm according to the 7th embodiment. In FIG. 13A,the optical photographing assembly includes, in order from an objectside to an image side, a prism 780, an aperture stop 700, a first lenselement 710, a second lens element 720, a third lens element 730, afourth lens element 740, a fifth lens element 750, a filter 760, a prism790 and an image surface 770. The optical photographing assembly has atotal of five lens elements (710-750), and there is an air space betweenevery two lens elements of the first lens element 710, the second lenselement 720, the third lens element 730, the fourth lens element 740 andthe fifth lens element 750 that are adjacent to each other.

The first lens element 710 with positive refractive power has anobject-side surface 711 being convex and an image-side surface 712 beingconvex. The first lens element 710 is made of a plastic material, andhas the object-side surface 711 and the image-side surface 712 beingboth aspheric. In the 7th embodiment, the first lens element 710 is amovable focusing lens element, and there is a relative displacementbetween the first lens element 710 and the second lens element 720. InFIG. 13A, the symbol of double arrow under the first lens element 710means that the first lens element 710 can be moved relative to thesecond lens element 720 along the optical axis.

The second lens element 720 with negative refractive power has anobject-side surface 721 being concave and an image-side surface 722being convex. The second lens element 720 is made of a plastic material,and has the object-side surface 721 and the image-side surface 722 beingboth aspheric.

The third lens element 730 with positive refractive power has anobject-side surface 731 being convex and an image-side surface 732 beingconvex. The third lens element 730 is made of a plastic material, andhas the object-side surface 731 and the image-side surface 732 beingboth aspheric.

The fourth lens element 740 with negative refractive power has anobject-side surface 741 being concave and an image-side surface 742being convex in a paraxial region thereof. The fourth lens element 740is made of a plastic material, and has the object-side surface 741 andthe image-side surface 742 being both aspheric.

The fifth lens element 750 with positive refractive power has anobject-side surface 751 being convex and an image-side surface 752 beingconcave. The fifth lens element 750 is made of a plastic material, andhas the object-side surface 751 and the image-side surface 752 beingboth aspheric. Furthermore, both of the object-side surface 751 and theimage-side surface 752 of the fifth lens element 750 include at leastone inflection point.

The filter 760 is made of a glass material and located between the fifthlens element 750 and the image surface 770, and will not affect thefocal length of the optical photographing assembly.

In the optical photographing assembly according to the 7th embodiment,the optical photographing assembly includes two prisms 780, 790 whichare made of glass materials. The prism 780 can be an object-sidereflective element located between an imaged object (its referencenumeral is omitted) and the aperture stop 700 on an optical path (whichis located on an optical axis of the optical photographing assemblyaccording to the 7th embodiment). The prism 790 can be an image-sidereflective element located between the filter 760 and the image surface770 on the optical path (which is located on the optical axis of theoptical photographing assembly according to the 7th embodiment).

The detailed optical data of the 7th embodiment are shown in Table 13and the aspheric surface data are shown in Table 14 below.

TABLE 13 7th Embodiment f = 9.99 mm/9.79 mm, Fno = 2.80, HFOV = 14.1deg./13.9 deg. Thickness Surface # Curvature Radius Position 1 Position2 Material Index Abbe # Focal Length 0 Object Plano Infinity 400.000 1Prism Plano 5.000 Plastic 1.660 20.4 — 2 Plano 1.024 3 Ape. Stop Plano−0.724 4 Lens 1 2.608 ASP 2.106 Plastic 1.544 55.9 4.62 5 −49.903 ASP0.367 0.420 6 Lens 2 −2.193 ASP 0.461 Plastic 1.660 20.4 −5.24 7 −6.505ASP 0.144 8 Lens 3 8.550 ASP 0.626 Plastic 1.660 20.4 6.71 9 −8.918 ASP0.348 10 Lens 4 −1.946 ASP 0.514 Plastic 1.615 26.0 −6.46 11 −4.198 ASP0.126 12 Lens 5 11.083 ASP 0.441 Plastic 1.544 55.9 66.19 13 15.791 ASP0.200 14 Filter Plano 0.210 Glass 1.517 64.2 — 15 Plano 0.200 16 PrismPlano 5.100 Plastic 1.544 55.9 — 17 Plano 0.682 0.685 18 Image Plano —Reference wavelength is 587.6 nm (d-line). Both of Prisms (780, 790)have reflective surface. Both of f and HFOV include data under theobject distance being infinite and 400 mm.

TABLE 14 Aspheric Coefficients Surface # 4 5 6 7 8 k=  3.2170E−014.6331E+01 −1.3677E+01 −4.7935E+01 2.7944E+01 A4= −2.2026E−03 1.9264E−02 7.6874E−02  2.8271E−01 7.5942E−02 A6=  5.9217E−05 −2.0933E−03 −6.6196E−02 −3.6008E−01 −2.2878E−01  A8= −1.7406E−04 1.1625E−03 3.2657E−02  2.9193E−01 2.0959E−01 A10=  4.4954E−05 −3.8814E−04 −7.6745E−03 −1.6195E−01 −1.1951E−01  A12= −5.9234E−06 3.2638E−04 6.9543E−04  5.5728E−02 4.3388E−02 A14= −8.2978E−03 −6.7369E−03  Surface# 9 10 11 12 13 k=  3.0324E+01 −4.0348E+00  −1.6120E+01  −6.8825E+007.2913E+01 A4= −5.2530E−02 2.1838E−02 3.0780E−02 −1.0981E−01−8.4919E−02  A6= −1.0620E−03 4.2724E−03 4.6343E−02  7.4213E−023.4875E−02 A8=  3.4280E−02 4.0614E−02 −7.2748E−02  −8.9219E−02−2.9555E−02  A10= −5.0550E−03 −4.4695E−02  4.0027E−02  5.2804E−021.6995E−02 A12= −7.0112E−03 1.6927E−02 −1.0491E−02  −1.3026E−02−4.7038E−03  A14=  2.4665E−03 −2.6940E−03  1.0746E−03  1.1762E−035.2824E−04

In the 7th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 7th embodiment, so an explanation in thisregard will not be provided again. Further, one condition with two datarefers to, from left to right, under the object distance being infiniteand 400 mm, respectively.

Moreover, these parameters can be calculated from Table 13 and Table 14as the following values and satisfy the following conditions:

7th Embodiment f [mm] 9.99/9.79 ΣCT/ΣAT 4.21/4.00 Fno. 2.80 f/ImgH3.96/3.88 HFOV [deg.] 14.1/13.9 f/TD 1.95/1.89 V2 20.4 SD/TD 0.86/0.86V3 20.4 BL/TD 1.25/1.23 V4 26.0 TD/TP1 1.03/1.04 tan(FOV) 0.54/0.53TD/TP2 1.01/1.02 T23/CT1 0.07 Yo/Yi 1.05/1.07 (R3 − R4)/(R3 + R4) −0.50Ymax/Ymin 1.26/1.28 (R5 + R6)/(R5 − R6) −0.02 VRO 20.4 f/R7 −5.13/−5.03VRI 55.9 |f1/f2| 0.88 T12i/T12m 0.87 f/f4 −1.55/−1.52 |Dr1s/Dr2s| 0.52f/f5 0.15/0.15 (WPO + WPI)/f 1.01/1.03 |f/f1| + |f/f2| 4.07/3.99DP/(WPO + WPI) 0.60/0.60 CT1/(ΣCT − CT1) 1.03

Furthermore, FIG. 13B and FIG. 13C are schematic views of the opticalphotographing assembly according to the 7th embodiment of FIG. 13A whichinclude different shapes and arrangements of the prisms 780, 790,respectively. In FIG. 13B and FIG. 13C, the optical data of the prisms780, 790 are the same as the optical data in Table 13, wherein thedifferences between FIG. 13A and FIG. 13B or FIG. 13A and FIG. 13C arethe shapes and arrangements of the prisms 780, 790 so as to change thedirections of the incident light of the optical photographing assemblyand the outgoing light which is for imaging on the image surface 770.Therefore, it is favorable for applying to various image capturingapparatuses or electronic devices. Moreover, In FIG. 13B, an incidentlight through the object-side reflective element (prism 780) into theoptical photographing assembly and the outgoing light through theimage-side reflective element (prism 790) are on the same side of theoptical axis of the lens elements.

8th Embodiment

FIG. 15 is a schematic view of an electronic device 1000 according tothe 8th embodiment of the present disclosure. According to the 8thembodiment, the electronic device 1000 includes an image capturingapparatus 1100. The image capturing apparatus 1100 includes an opticalphotographing assembly (its reference numeral is omitted) and an imagesensor 1110, wherein the image sensor 1110 is disposed on the imagesurface 170 of the optical photographing assembly. The opticalphotographing assembly includes, in order from an object side to animage side along the optical axis, an object-side reflective element, aplurality of lens elements and an image-side reflective element, whereinthe optical photographing assembly of the image capturing apparatus 1100can be any one of the optical photographing assembly of theaforementioned 1st to 7th embodiments, and the optical photographingassembly according to the 8th embodiment is the same as the opticalphotographing assembly according to the 1st embodiment, and the detaileddescription referring to FIG. 15 is stated as follow.

In the optical photographing assembly according to the 8th embodiment,the object-side reflective element is the prism 180, and the image-sidereflective element is the prism 190, wherein there is no lens elementalong the optical axis between the object-side reflective element (theprism 180) and the imaged object, there is no lens element along anoptical axis between the image-side reflective element (the prism 190)and the image surface 1150. The plurality of lens elements of theoptical photographing assembly includes, in order from an object side toan image side along the optical axis, the first lens element 110, thesecond lens element 120, the third lens element 130, the fourth lenselement 140 and the fifth lens element 150, and further includes theaperture stop 100 located between the prism 180 and the first lenselement 110, and the filter 160 located between the fifth lens element150 and the prism 190. In the 8th embodiment, shape, opticalcharacteristic and data of each element are the same as the descriptionof the 1st embodiment, and will not describe again herein.

In FIG. 15, when a maximum total length of the electronic device 1000 isTmax, the focal length of the optical photographing assembly is f, andaccording to the 8th embodiment, f=10.00 mm and Tmax=7.46 mm. Therefore,the maximum total length of the electronic device is shorter than thefocal length of the optical photographing assembly (Tmax<f).

Furthermore, according to the 8th embodiment, the optical photographingassembly is movable in the image capturing apparatus 1100 forstabilizing an image, for example, the image capturing apparatus 1100can further include optical image stabilization functionality.

9th Embodiment

FIG. 16 is a schematic view of an electronic device 2000 according tothe 9th embodiment of the present disclosure. The electronic device 2000of the 9th embodiment is a smartphone, wherein the electronic device2000 includes an image capturing apparatus 2100. The image capturingapparatus 2100 includes an optical photographing assembly (its referencenumeral is omitted) according to the present disclosure and an imagesensor (its reference numeral is omitted), wherein the image sensor isdisposed on an image surface of the optical photographing assembly.

10th Embodiment

FIG. 17 is a schematic view of an electronic device 3000 according tothe 10th embodiment of the present disclosure. The electronic device3000 of the 10th embodiment is a tablet personal computer, wherein theelectronic device 3000 includes an image capturing apparatus 3100. Theimage capturing apparatus 3100 includes an optical photographingassembly (its reference numeral is omitted) according to the presentdisclosure and an image sensor (its reference numeral is omitted),wherein the image sensor is disposed on an image surface of the opticalphotographing assembly.

11th Embodiment

FIG. 18 is a schematic view of an electronic device 4000 according tothe 11th embodiment of the present disclosure. The electronic device4000 of the 11th embodiment is a wearable device, wherein the electronicdevice 4000 includes an image capturing apparatus 4100. The imagecapturing apparatus 4100 includes an optical photographing assembly (itsreference numeral is omitted) according to the present disclosure and animage sensor (its reference numeral is omitted), wherein the imagesensor is disposed on an image surface of the optical photographingassembly.

The foregoing description, for purpose of explanation, has beendescribed with reference to specific embodiments. It is to be noted thatTables 1-14 show different data of the different embodiments; however,the data of the different embodiments are obtained from experiments. Theembodiments were chosen and described in order to best explain theprinciples of the disclosure and its practical applications, to therebyenable others skilled in the art to best utilize the disclosure andvarious embodiments with various modifications as are suited to theparticular use contemplated. The embodiments depicted above and theappended drawings are exemplary and are not intended to be exhaustive orto limit the scope of the present disclosure to the precise formsdisclosed. Many modifications and variations are possible in view of theabove teachings.

What is claimed is:
 1. An optical photographing assembly comprising, inorder from an object side to an image side along an optical axis: anobject-side reflective element without refractive power; a plurality oflens elements, at least one surface of at least one of the lens elementsbeing aspheric and comprising at least one inflection point; and animage-side reflective element without refractive power; wherein there isno lens element along the optical axis between the object-sidereflective element and an imaged object, there is no lens element alongthe optical axis between the image-side reflective element and an imagesurface, a maximum field of view of the optical photographing assemblyis FOV, an axial distance between an image-side surface of one lenselement closest to an image surface and the image surface is BL, anaxial distance between an object-side surface of one of the lenselements closest to an imaged object and the image-side surface of thelens element closest to the image surface is TD, a width parallel to theoptical axis of the object-side reflective element is WPO, a widthparallel to the optical axis of the image-side reflective element isWPI, a focal length of the optical photographing assembly is f, and thefollowing conditions are satisfied:0.10<tan(FOV)<1.0;0.55<BL/TD<1.80; and0.70<(WPO+WPI)/f<1.50.
 2. The optical photographing assembly of claim 1,wherein the plurality of lens elements comprises, in order from anobject side to an image side along the optical axis: a first lenselement with positive refractive power having an object-side surfacebeing convex; and a second lens element having negative refractivepower.
 3. The optical photographing assembly of claim 2, wherein theplurality of lens elements further comprises: a third lens elementdisposed between the second lens element and the image surface along theoptical axis, and having positive refractive power.
 4. The opticalphotographing assembly of claim 3, wherein the plurality of lenselements further comprises a fourth lens element and a fifth lenselement, wherein the fourth lens element and the fifth lens element aredisposed in order from an object side to an image side along the opticalaxis between the third lens element and the image surface, and each ofthe fourth lens element and the fifth lens element has at least onesurface being aspheric.
 5. The optical photographing assembly of claim2, wherein the optical photographing assembly has a total of five lenselements, the lens elements are made of plastic materials, and the lenselements have object-side and image-side surfaces being aspheric.
 6. Theoptical photographing assembly of claim 1, wherein both of theobject-side reflective element and the image-side reflective element areprisms.
 7. The optical photographing assembly of claim 6, wherein theaxial distance between the object-side surface of the lens elementclosest to the imaged object and the image-side surface of the lenselement closest to the image surface is TD, a sum of light path lengthson the optical axis in at least one of the prism is TP, and thefollowing condition is satisfied:0.80<TD/TP<1.25.
 8. The optical photographing assembly of claim 6,wherein both of the object-side reflective element and the image-sidereflective element are made of plastic materials, an Abbe number of theobject-side reflective element is VRO, an Abbe number of the image-sidereflective element is VRI, and the following conditions are satisfied:VRO<60.0; andVRI<60.0.
 9. The optical photographing assembly of claim 1, wherein anaxial distance between the object-side reflective element and theimage-side reflective element is DP, the width parallel to the opticalaxis of the object-side reflective element is WPO, the width parallel tothe optical axis of the image-side reflective element is WPI, and thefollowing condition is satisfied:0.50<DP/(WPO+WPI)<0.80.
 10. The optical photographing assembly of claim1, wherein an incident light through the object-side reflective elementinto the optical photographing assembly and an outgoing light throughthe image-side reflective element are on the same side of the opticalaxis of the lens elements.
 11. The optical photographing assembly ofclaim 1, wherein the plurality of lens elements comprises a first lenselement and a second lens element, wherein the first lens element is amovable focusing lens element, there is a relative displacement betweenthe first lens element and the second lens element, and it is relativelystationary between every two of the lens elements excluding the firstlens element; when an axial distance between the first lens element andthe second lens element with an object distance at infinity is T12i, anaxial distance between the first lens element and the second lenselement with an object distance at 400 mm is T12m, and the followingcondition is satisfied:0.50<T12i/T12m<0.95.
 12. The optical photographing assembly of claim 1,wherein the plurality of lens elements comprises three lens elements,and an Abbe number of each of the three lens elements is smaller than27.0.
 13. The optical photographing assembly of claim 1, wherein theplurality of lens elements comprises a first lens element and a secondlens element, a focal length of the first lens element is f1, a focallength of the second lens element is f2, the focal length of the opticalphotographing assembly is f, and the following condition is satisfied:3.30<|f/f1|+|f/f2|<5.80.
 14. The optical photographing assembly of claim1, wherein an effective radius of a lens surface closest to the imagedobject is Yo, an effective radius of a lens surface closest to the imagesurface is Yi, and the following condition is satisfied:0.95<Yo/Yi<1.15.
 15. The optical photographing assembly of claim 1,wherein a sum of thicknesses of the lens elements of the opticalphotographing assembly is ΣCT, a sum of axial distances between everytwo of the lens elements of the optical photographing assembly that areadjacent to each other is ΣAT, and the following condition is satisfied:3.0<ΣCT/ΣAT<5.0.
 16. The optical photographing assembly of claim 1,wherein the central thickness of the first lens element is CT1, a sum ofthicknesses of the lens elements of the optical photographing assemblyis ΣCT, and the following condition is satisfied:0.50<CT1/(ΣCT−CT1)<1.80.
 17. The optical photographing assembly of claim1, wherein the focal length of the optical photographing assembly is f,a maximum image height of the optical image lens assembly is ImgH, andthe following condition is satisfied:3.0<f/ImgH<6.0.
 18. An image capturing apparatus, comprising: theoptical photographing assembly of claim 1; and an image sensor, whereinthe image sensor is disposed on the image surface of the opticalphotographing assembly; wherein the optical photographing assembly ismovable in the image capturing apparatus for stabilizing an image. 19.An electronic device, comprising: the image capturing apparatus of claim18; wherein a total length of the electronic device is shorter than thefocal length of the optical photographing assembly of the imagecapturing apparatus.